package a入门.day6.数组工具类;

import java.util.Arrays;

public class Test {
    public static void main(String[] args) {
        int[]arr={3,4,2,56,12};
        Arrays.sort(arr);
        arr=new int[10];
        Arrays.fill(arr,20);
        System.out.println(Arrays.toString(arr));
    }
}
